Seiko Cal. 4520 - 951

This Hand-Winding model from 1979 features a 39mm Titanium case. With its 19mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-fbb0dafe1251]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

22j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1979

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